Just a note for those of you who upscale this model...the loader's cabin slopes upward when the model is flat on buildplate. About a third of the way through the print the cabin assembly started to wobble badly when the printhead passed over this area and i aborted the print. For the next attempt I've tried to solve this by adding 'zigzag support touching buildplate' to the model. I upscaled the model to 70mm x-axis.
Beautiful work agepbiz.